Cause Queen Elizabeth is never going to die. She's going to be like Ida Lowry in Brazil, getting herself rejuvenated every 10 years or so.
By tweaking genes that turn adult cells back into embryoniclike ones, researchers at the Salk Institute for Biological Studies reversed the aging of mouse and human cells in vitro, extended the life of a mouse with an accelerated-aging condition and successfully promoted recovery from an injury in a middle-aged mouse, according to a study published Thursday in Cell.
The study adds weight to the scientific argument that aging is largely a process of so-called epigenetic changes, alterations that make genes more active or less so. Over the course of life cell-activity regulators get added to or removed from genes. In humans those changes can be caused by smoking, pollution or other environmental factors--which dial the genes' activities up or down. As these changes accumulate, our muscles weaken, our minds slow down and we become more vulnerable to diseases.
The new study suggests the possibility of reversing at least some of these changes, a process researchers think they may eventually get to work in living humans. "Aging is something plastic that we can manipulate," says Juan Carlos Izpisua Belmonte, the study's senior author and an expert in gene expression at Salk. In their study Belmonte and his colleagues rejuvenated cells by turning on, for a short period of time, four genes that have the capacity to convert adult cells back into an embryoniclike state.
With an approach like the one Belmonte lays out in the new study, theoretically "you could have one treatment and go back 10 or 20 years," he says. If aging starts to catch up to you again, you simply get another treatment.
They come out with a study every couple of years about how they've discovered yet another way to slow/reverse aging. They don't seem to go anywhere, though. I think they do it just to keep up my Resident Evil paranoia. It's working.
fnord12: Love that you hear we're on the verge of immortality and your first thought is "Poor Prince Charles!". The zombie fear i expected, ofc.